Description

This describes the configuration options for GStreamer. When building
GStreamer there are a lot of parts (known internally as "subsystems" ) that
can be disabled for various reasons. The most common reasons are speed and
size, which is important because GStreamer is designed to run on embedded
systems.

If a subsystem is disabled, most of this changes are done in an API
compatible way, so you don't need to adapt your code in most cases. It is
never done in an ABI compatible way though. So if you want to disable a
suybsystem, you have to rebuild all programs depending on GStreamer, too.

If a subsystem is disabled in GStreamer, a value is defined in
<gst/gst.h>. You can check this if you do subsystem-specific stuff.